3 methods override CacheBackendInterface::delete()

ApcuBackend::delete in core/lib/Drupal/Core/Cache/ApcuBackend.php: Deletes an item from the cache.
NullBackend::delete in core/lib/Drupal/Core/Cache/NullBackend.php: Deletes an item from the cache.
PhpBackend::delete in core/lib/Drupal/Core/Cache/PhpBackend.php: Deletes an item from the cache.

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